Patents by Inventor Gustav G. Hughes

Gustav G. Hughes has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Non-slumping, pumpable castable and method of applying the same
    Patent number: 5549745
    Abstract: An essentially non-slumping, high density, low moisture and low cement castable composition, consisting of a tempered, pumpable first component containing the castable solids and consisting essentially of a refractory aggregate, a calcium-aluminate cement, a flow aid, a deflocculating agent, and water, the water being present in the lowest amount sufficient to achieve a pumpable consistency of the tempered first component, and a flocculating agent as a second component to be added to said first component at time of installation in an amount sufficient to give the castable a dried bulk density of at least about 120 pcf.
    Type: Grant
    Filed: October 27, 1995
    Date of Patent: August 27, 1996
    Assignee: Indresco Inc.
    Inventors: Mark C. Langenohl, Gustav G. Hughes